Fanning-mill



- (No Model.)

P. POY-NEER.

FANNING' MILL. No. 255.812. Patnted Apr.4,1882

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(UNITED STATES PATENT OFFICE.

PERRY PoYNEnn, on KALAMAZOO, MICHIGAN.

FANNlNG-MILL.

SPECIFICATION forming part of Letters Patent No. 255,812, dated April 4,1882. Application filed December 23. 1881. (No model.)

which contains the sieves and screens 5 Fig.2, a

broken pprtion of ascreen; Fig. 3, an enlarged detached portion of Fig.1; Fig. 4, asectional view on dotted line 1 2 in Fig. 5; Fig. 5, a rearend view of the mill; Fig. 6, a top View of mechanism for operating theshoe; Fig. 7, a broken rear end of one side of the mill, and Fig. 8 abroken rear portion of Fig. 4.

A illustrates the main frame or outer inclosore of a fanning-mill, and Bthe shoe, both of construction each end of shoe B, instead of only therear end, is vibrated laterally, and as there are no frictional bearings to the suspending mechanism, and the same being elastic, thevibration is accompanied with less noise and jarring. In lieu of the oldmethod of placing the sieves and screens in the shoe B,I provide therear end with casting 0, having inclined grooves h h, and near the frontend, at c, I se-- cure studs f f. Iprovide the sieves and screens ateach side of the rear end with studs d, Fig. 2. Thus the screens orsieves maybe located at given points and angles by locating them onstuds f and inserting studs din grooves h h. Studsff have previouslybeen employed for holding up each end of a screen; but by means of theshortinclined grooves,in connection with studs ff and the studs in thesides of the screens, said screens are conveniently operated and arebetter kept in place. I

a is a rod located through the sides of the shoe B, and is provided witha thumb-screw, bymeans of which the sidesmay becompressed, if necessary,which effectually holds thescreens from rattling, Figs. 1 and 5.

It is sometimes desirable to locate a screen temporarily on theshoe-hopper G beneath the hopper tray or spout. In Fig. 1 grooves areshown formed in the sides ot' the shoe beneath the spout, in whichgrooves the studs d d of the screen are located when thus using ascreen. By the arrangement and construction the screen may be thuslocated and detached again readily, and is held secure in place while inuse. The screen is not shown located on the hopper; but its-constructionfor this purpose is shown in Fig. 2 at d, and its location and use arereadily understood by those skilled in the art.

In Fig. 4 a modification from Fig. 1 is shown, a portion of the sides ofthe shoe being cut away at E to accommodate the adjusting-bar D, Fig. 5.The ends of this bar are located in the vertical slots at a of plate as,secured to frame A, Figs. 5 and 7. The end of bar D is threaded andprovided with thumb-screw b, by which means it can be located at anypoint between the two ends of slots an, and as said bar supports therear end of screen o in this construction, the pitch of said screen canbe readily adjusted from one degree to another. a is a fixed support forthe lower or frontend of screen a.

It is sometimes desirable to impart a vertical oscillation to the lowerscreen in connection with the lateral oscillation, the effect of whichis to cause an increased flow of foul grain or seed through it, and toclear the screen of straw and like accumulations. I effect this byproviding the screen with a'semicircular bud or projection, s, and thesupport of said screen with a similar projection, s. This support (shownin the drawings) consists of bar D. In mills not employing said bar theprojection 8 may be secured to the frame below or to afixcd supportprovided for the purpose.

The operation is shown in Fig. 5. As shoe B moves laterally back andforth the screen 21 alternately rises and falls the distance indi-'cated by dotted line 11. Some conditions of grain require less distancein the lateral movement of the shoe than others. To effect this in asingle mill I have provided the following adjustable mechanism o inFigs. 5 and 6 is a bell-crank pivoted to a support at d.

y is the rod used in fanning-mills for connecting the bell-crank withthe crank or propelling arrangement located in the front end ot'themill. (Nothere shown.) With this mechanism Iconibine an adjustablejoint, t, rounded at one corner and pivoted at r to a support secured toshoe B. This joint is jointedly connected with the bell-crank by link l.

e is adetachable pin holdingjoint t stationary at either of its twodifferent points of location, saidjoint beingprovided with two holes, 2,to receive it. When joint t is adjusted as in Fig. 6 rod y is connectedwith bell-crank v at m. When in position shown in Figs. 1, 5, and bydotted lines in Fig. 6 rod y is located in hole m. In thus changingjointif from one position to another, pin 0 is changed from one of the-holesz to the other, as indicated in the drawings. When the device is in thelatter position the lateral oscillation or movement of shoe B is asindicated by dotted line 6 8,.Fig. 5; but when in the former positionthe degree in distance is diminished and a more jarring or tremblingmotion imparted to it.

What I claim as new, and desire to secure by Letters Patent, is j 1. Inafanning-mill,alaterally-shaking shoe provided with a screen looselylocated therein,

said screen provided with the semicircular proections, in combinationwith an adjustable bar 0 provided with a similar projection andsupporting the rear end of said screen, all substantially as described.

2. A fanning-mill shoe, the adjustable joint having pin-holes, and a pinfor looking it in different positions, said joint and shoe beingpivotally connected, all in combination with the bell-crank andconnecting-link, substantialiy as described and shown.

3. The mill-frame, bell-crank, shoe, elastic metal bars, the adjustablejoint pivoted to the shoe, means for connecting said joint with thebell-crank, and means for lockin g said parts in different positions,all constructed and combined substantially as described, for the ob-.ject set forth.

4. The combination of a shoe the top of which forms a hopper, providedwith the grooves in the sides beneath the hopper-spout, with a screenprovided with studs for detacha 5o bly securing it on the shoe-hopper,substantially as described.

PERRY POYNEER. Witnesses:

EUGENE S. WEST,

B. F. S'rULTz.

